Correlation is not causation. There is a chance that a Gamer could be a shooter but gaming alone isn't the cause and Guns aren't either. Allowing sick people to own weapons is an issue but it's still not the core issue. A person who gets enough sleep can still be a mass killer and so can a person with a proper diet. People who are mass shooters have friends and associates though often this aspect is limited. What they don't have is balance. Playing games is a passtime and a mental vacation. it's not necessarily relaxing, some images are startling... that's usually the point but people who have a balanced outlook on life, who are socially engaged and have interests outside of politics or games or whatever are able to compartmentalize their world. Shooters tend to lose that balance and that ability to see one reality as separate from another. I say Lose, because the person who owns a firearm isn't usually outside of their faculties when the acquired it. Because this is generally true, just getting more thorough background checks isn't the solution either. You think about how change happens in your life...think about something you used to do quite frequently like sports or ...something you got into when you were relatively young and then just grew out of. How long did it take before it just stopped being important to you? People who start picking out their personal clocktower are probably not that far from a time when such a thought would be ridiculous. I believe that Mental Health is like physical health, if you let illnesses go, there is a chance your body's coping ability will overcome it...and there's a chance it will get alot worse relatively quickly. Solution, get out of the house and away from the console... get together with friends...GETTING LAID is always good for perspective.